Their accounts cannot be verified independently because Yugoslavia has
barred international journalists from Kosovo.

NATO officials said Yugoslav President Slobodan Milosevic has
"engineered a calculated humanitarian catastrophe."

Mehmet Krasniqi, his blistered hands bandaged, his face
covered with burns, said he survived a mass killing after Serb tanks took over his village, Mala Krusa.

"They rounded up all the villagers. Then they separated men
from women. To the women they said, 'You may go the border,'"
he said.

"But they put us men in two big rooms and started to shoot
us. They said, 'Now NATO can save you,'" he said.

He said Serb soldiers covered the bodies with straw and set
them on fire. He said he survived by "playing dead." He
escaped after Serbs left to find more fuel to burn
the bodies.

Refugee Selim Popaj said Serb special police forces killed 72
people in his village on March 25, including five of his teen-age and adult sons.

He told CNN that Yugoslav troops surrounded his
village with tanks. As the villagers tried to escape, the
troops caught 200 people, separated 46 men from
that group and killed them, he said. Popaj said they let him go because he is old.

Although these reports cannot be confirmed, other refugees
have told CNN similar stories.

Jelaidim Sefulahu said he was cowering in the basement when Serb
forces found him.

"They collected all the people. They separated the women from
the men. They told the women to leave. They put the men
against the wall. They killed the men. I don't know what else
to say," he said. "My brother was killed. Three of my cousins and the
son of one of them were killed too."

BBC video suggests evidence of mass executions

A video given to the British Broadcasting Corporation Saturday
showed what the cameraman called evidence of a mass killing by
Serb forces. The footage records what looks like a mass grave
filled with men of fighting age who suffered bullet wounds.

"They all appeared to have been shot at close range. Most of
the video is unsuited for broadcast," said BBC correspondent
Clarence Mitchell.

"One man has a bullet wound in his forehead. Another has been
clearly shot behind his back ... it is gruesome to the
extreme," Mitchell said.

"We knew fully well that there was a campaign of ethnic
cleansing," NATO spokesman James Shea said.

But he said none realized the scale of the atrocities. "Nobody could have guessed that it would reach such
proportions."